South Korean chief negotiator Chun Yung-woo arrived in Beijing on Tuesday morning to participate in a chief negotiator meeting of the six-party talks scheduled on Wednesday.

North Korea is implementing its commitment to the denuclearization on the shutdown of the Yongbyon nuclear reactor, which is a tangible step to the denuclearization process, Chun said upon his arrival at the Capital International Airport.

The denuclearization process has just had a start however, and all sides still have a difficult way to go in the future, he said.

Chun also called for other sides to take corresponding measures with North Korea and promote the denuclearization process.

The two-day meeting is scheduled to start in Beijing on Wednesday morning, during which the chief delegates will discuss issues related to the initial actions for denuclearization and lay out following steps.

Besides Chun, US chief envoy Christopher Hill, Russian envoy Vladimir Rakhmanin and North Korean chief envoy Kim Kye-gwan have arrived Beijing.

(Xinhua News Agency July 17, 2007)